import Excel from 'exceljs'

import FileSaver from 'file-saver'

export const exportExcel = async (name, luckysheet) => {
  // 获取 buffer
  let buffer = await getBuffer(luckysheet)
  download(name, buffer)
}



/**
 *  使用 fileSaver 进行文件保存操作
 * @param {Buffer} buffer
 */
function download(name, buffer) {
  try {
    const blob = new Blob([buffer], {
      type: 'application/vnd.ms-excel;charset=utf-8'
    })
    FileSaver.saveAs(blob, `${name}.xlsx`)
    ElMessage.success('文件导出成功')
  } catch (error) {
    ElMessage.error('文件导出失败')
  }
}

/**
 *
 * @param { Array as luckysheet.getluckysheetfile() } luckysheet
 * @returns
 */
async function getBuffer(luckysheet) {
  // 参数为luckysheet.getluckysheetfile()获取的对象
  // 1.创建工作簿，可以为工作簿添加属性
  const workbook = new Excel.Workbook()
  // 2.创建表格，第二个参数可以配置创建什么样的工作表
  luckysheet.every(function(table) {
    if (table.data.length === 0) return true
    const worksheet = workbook.addWorksheet(table.name)
    // 3.设置单元格合并,设置单元格边框,设置单元格样式,设置值
    setStyleAndValue(table.data, worksheet)
    setMerge(table.config.merge, worksheet)
    setBorder(table.config.borderInfo, worksheet)
    return true
  })
  // 4.写入 buffer
  const buffer = await workbook.xlsx.writeBuffer()
  return buffer
}

var setMerge = function(luckyMerge = {}, worksheet) {
  const mergearr = Object.values(luckyMerge)
  mergearr.forEach(function(elem) {
    // elem格式：{r: 0, c: 0, rs: 1, cs: 2}
    // 按开始行，开始列，结束行，结束列合并（相当于 K10:M12）
    worksheet.mergeCells(elem.r + 1, elem.c + 1, elem.r + elem.rs, elem.c + elem.cs)
  })
}

var setBorder = function(luckyBorderInfo, worksheet) {
  if (!Array.isArray(luckyBorderInfo)) {
    return
  }
  // console.log('luckyBorderInfo', luckyBorderInfo)
  luckyBorderInfo.forEach(function(elem) {
    // 现在只兼容到borderType 为range的情况
    // console.log('ele', elem)
    if (elem.rangeType === 'range') {
      let border = borderConvert(elem.borderType, elem.style, elem.color)
      let rang = elem.range[0]
      // console.log('range', rang)
      let row = rang.row
      let column = rang.column
      for (let i = row[0] + 1; i < row[1] + 2; i++) {
        for (let y = column[0] + 1; y < column[1] + 2; y++) {
          worksheet.getCell(i, y).border = border
        }
      }
    }
    if (elem.rangeType === 'cell') {
      // col_index: 2
      // row_index: 1
      // b: {
      //   color: '#d0d4e3'
      //   style: 1
      // }
      const {
        col_index,
        row_index
      } = elem.value
      const borderData = Object.assign({}, elem.value)
      delete borderData.col_index
      delete borderData.row_index
      let border = addborderToCell(borderData, row_index, col_index)
      // console.log('bordre', border, borderData)
      worksheet.getCell(row_index + 1, col_index + 1).border = border
    }
    // console.log(rang.column_focus + 1, rang.row_focus + 1)
    // worksheet.getCell(rang.row_focus + 1, rang.column_focus + 1).border = border
  })
}
var setStyleAndValue = function(cellArr, worksheet) {
  if (!Array.isArray(cellArr)) {
    return
  }
  cellArr.forEach(function(row, rowid) {
    // const dbrow = worksheet.getRow(rowid+1);
    // //设置单元格行高,默认乘以1.2倍
    // dbrow.height=luckysheet.getRowHeight([rowid])[rowid]*1.2;
    row.every(function(cell, columnid) {
      if (rowid == 0) {
        const dobCol = worksheet.getColumn(columnid + 1)
        //设置单元格列宽除以8
        dobCol.width = luckysheet.getColumnWidth([columnid])[columnid] / 8
      }
      if (!cell) {
        return true
      }
      //设置背景色
      let bg = cell.bg || '#FFFFFF' //默认white
      bg = bg === 'yellow' ? 'FFFF00' : bg.replace('#', '')
      let fill = {
        type: 'pattern',
        pattern: 'solid',
        fgColor: {
          argb: bg
        }
      }
      let font = fontConvert(cell.ff, cell.fc, cell.bl, cell.it, cell.fs, cell.cl, cell.ul)
      let alignment = alignmentConvert(cell.vt, cell.ht, cell.tb, cell.tr)
      let value = ''

      if (cell.f) {
        value = {
          formula: cell.f,
          result: cell.v
        }
      } else if (!cell.v && cell.ct && cell.ct.s) {
        // xls转为xlsx之后，内部存在不同的格式，都会进到富文本里，即值不存在与cell.v，而是存在于cell.ct.s之后
        // value = cell.ct.s[0].v
        cell.ct.s.forEach((arr) => {
          value += arr.v
        })
      } else {
        value = cell.v
      }
      //  style 填入到_value中可以实现填充色
      let letter = createCellPos(columnid)
      let target = worksheet.getCell(letter + (rowid + 1))
      // console.log('1233', letter + (rowid + 1))
      for (const key in fill) {
        target.fill = fill
        break
      }
      target.font = font
      target.alignment = alignment
      target.value = value

      return true
    })
  })
}

var fontConvert = function(ff = 0, fc = '#000000', bl = 0, it = 0, fs = 10, cl = 0, ul = 0) {
  // luckysheet：ff(样式), fc(颜色), bl(粗体), it(斜体), fs(大小), cl(删除线), ul(下划线)
  const luckyToExcel = {
    0: '微软雅黑',
    1: '宋体（Song）',
    2: '黑体（ST Heiti）',
    3: '楷体（ST Kaiti）',
    4: '仿宋（ST FangSong）',
    5: '新宋体（ST Song）',
    6: '华文新魏',
    7: '华文行楷',
    8: '华文隶书',
    9: 'Arial',
    10: 'Times New Roman ',
    11: 'Tahoma ',
    12: 'Verdana',
    num2bl: function(num) {
      return num === 0 ? false : true
    }
  }
  // 出现Bug，导入的时候ff为luckyToExcel的val

  //设置字体颜色
  fc = fc === 'red' ? 'FFFF0000' : fc.replace('#', '')
  let font = {
    name: typeof ff === 'number' ? luckyToExcel[ff] : ff,
    family: 1,
    size: fs,
    color: {
      argb: fc
    },
    bold: luckyToExcel.num2bl(bl),
    italic: luckyToExcel.num2bl(it),
    underline: luckyToExcel.num2bl(ul),
    strike: luckyToExcel.num2bl(cl)
  }

  return font
}

var alignmentConvert = function(vt = 'default', ht = 'default', tb = 'default', tr = 'default') {
  // luckysheet:vt(垂直), ht(水平), tb(换行), tr(旋转)
  const luckyToExcel = {
    vertical: {
      0: 'middle',
      1: 'top',
      2: 'bottom',
      default: 'top'
    },
    horizontal: {
      0: 'center',
      1: 'left',
      2: 'right',
      default: 'left'
    },
    wrapText: {
      0: false,
      1: false,
      2: true,
      default: false
    },
    textRotation: {
      0: 0,
      1: 45,
      2: -45,
      3: 'vertical',
      4: 90,
      5: -90,
      default: 0
    }
  }

  let alignment = {
    vertical: luckyToExcel.vertical[vt],
    horizontal: luckyToExcel.horizontal[ht],
    wrapText: luckyToExcel.wrapText[tb],
    textRotation: luckyToExcel.textRotation[tr]
  }
  return alignment
}

var borderConvert = function(borderType, style = 1, color = '#000') {
  // 对应luckysheet的config中borderinfo的的参数
  if (!borderType) {
    return {}
  }
  const luckyToExcel = {
    type: {
      'border-all': 'all',
      'border-top': 'top',
      'border-right': 'right',
      'border-bottom': 'bottom',
      'border-left': 'left'
    },
    style: {
      0: 'none',
      1: 'thin',
      2: 'hair',
      3: 'dotted',
      4: 'dashDot', // 'Dashed',
      5: 'dashDot',
      6: 'dashDotDot',
      7: 'double',
      8: 'medium',
      9: 'mediumDashed',
      10: 'mediumDashDot',
      11: 'mediumDashDotDot',
      12: 'slantDashDot',
      13: 'thick'
    }
  }
  let template = {
    style: luckyToExcel.style[style],
    color: {
      argb: color.replace('#', '')
    }
  }
  let border = {}
  if (luckyToExcel.type[borderType] === 'all') {
    border['top'] = template
    border['right'] = template
    border['bottom'] = template
    border['left'] = template
  } else {
    border[luckyToExcel.type[borderType]] = template
  }
  // console.log('border', border)
  return border
}

function addborderToCell(borders, row_index, col_index) {
  let border = {}
  const luckyExcel = {
    type: {
      l: 'left',
      r: 'right',
      b: 'bottom',
      t: 'top'
    },
    style: {
      0: 'none',
      1: 'thin',
      2: 'hair',
      3: 'dotted',
      4: 'dashDot', // 'Dashed',
      5: 'dashDot',
      6: 'dashDotDot',
      7: 'double',
      8: 'medium',
      9: 'mediumDashed',
      10: 'mediumDashDot',
      11: 'mediumDashDotDot',
      12: 'slantDashDot',
      13: 'thick'
    }
  }

  // console.log('borders', borders)
  for (const bor in borders) {
    // console.log(bor)
    if (borders[bor].color.indexOf('rgb') === -1) {
      border[luckyExcel.type[bor]] = {
        style: luckyExcel.style[borders[bor].style],
        color: {
          argb: borders[bor].color.replace('#', '')
        }
      }
    } else {
      border[luckyExcel.type[bor]] = {
        style: luckyExcel.style[borders[bor].style],
        color: {
          argb: borders[bor].color
        }
      }
    }
  }

  return border
}

function createCellPos(n) {
  let ordA = 'A'.charCodeAt(0)

  let ordZ = 'Z'.charCodeAt(0)
  let len = ordZ - ordA + 1
  let s = ''
  while (n >= 0) {
    s = String.fromCharCode((n % len) + ordA) + s

    n = Math.floor(n / len) - 1
  }
  return s
}


export const handleData = async (fileList, mainFile) => {



  let mainFiletransToData = luckysheet.transToData(mainFile.sheets[0].celldata);
  let result = check(mainFiletransToData);
  if (result != 'report') {
    ElMessage.warning(
      `主表数据异常`
    )
    return;
  }
  let length = fileList.length;
  let err = [];
  if (length > 0) {
    // return length;
    console.log(99999,mainFile.sheets[0]);
    for (let i = 0; i < length; i++) {
      let FiletransToData = luckysheet.transToData(fileList[i].sheets[0].celldata);
      let type = check(FiletransToData);
      if (type == 'away') { //出差
        mainFiletransToData;
        FiletransToData;
      }
      if (type == 'leave') { //leave 请假
        mainFiletransToData;
        FiletransToData;
      }
      if (type == 'attendance') { //attendance 考勤
        mainFiletransToData;
        FiletransToData;
      }
      if (type == 0) {
        err.push(i)
      }
    }
  }


mainFile.sheets[0].setc
  return {
    'mainFile': mainFiletransToData,
    'err': err
  };

}

//
//

const exceltitle = [{ //away 出差
    'away': ['申请人', '出差人', '日期', '所在公司', '成本中心', '预定类型', '出发时间', '出发时间段', '返程时间', '返程时间段', '申请人预计出差天数', '预订方式', '飞机',
      '火车',
      '公司派车', '其他', '酒店', '出发城市-控制', '目的城市-控制', '申请类型', '流程状态_系统字段', '创建时间_系统字段'
    ]
  },
  { //leave 请假
    'leave': ['所在部门', '申请人', '请假类型', '开始日期', '开始时间段', '结束日期', '结束时间段', '实际开始日期', '实际开始时间段', '实际结束日期', '实际结束时间段',
      '请假天数', '实际请假天数', '明细表ID_系统字段'
    ]
  },
  { //attendance 考勤
    'attendance': ['姓名', '考勤组', '部门', '工号', '职位', 'UserId', '出勤天数', '休息天数', '工作时长', '迟到次数', '迟到时长', '严重迟到次数',
      '严重迟到时长', '旷工迟到次数',
      '早退次数', '早退时长', '上班缺卡次数', '下班缺卡次数', '旷工天数', '出差时长', '外出时长', '加班-审批单统计', '加班时长-按加班规则计算', '考勤结果'
    ]
  },
  {
    'report': ['姓名', '账号', '部门', '职务', '所属规则', '概况', '异常情况', '假勤情况', '加班情况', '打卡明细']
  }
];

function check(arr) {
  // return 111;

  let temp_exceltitle = arr[2].filter(item => item && item.v).map(i => i.v);

  console.log(2, temp_exceltitle);
  // return temp_exceltitle;
  let arr2 = exceltitle.find((v) => Object.values(v)[0].toString() === temp_exceltitle.toString());
  if (arr2) {
    return Object.keys(arr2)[0];
  } else {
    return 0;
  };

}
